31
TEST POINT DIAGRAM AND VOLTAGE
MUX-19TV -
MUX-20TV -
MUX-25TV -
E1
E1
E1
Outdoor control P.C. board
Solenoid coil 21R3
Solenoid coil 21R4
From indoor
unit A
12V DC
1
+,
3
–
From indoor
unit C
12V DC
1
+,
3
–
Solenoid coil 21RB
From indoor
unit B
12V DC
1
+,
3
–
Fan motor
Fan capacitor
Fan capacitor
To compressor
MC1
To terminal
block
Fuse 250V AC
3.15A
Power supply
input
220-240V AC
OB284-2.qxp 01.4.26 9:00 PM Page 31